Question

The mass of Sodium in 11.7 g of Sodium chloride is

• A. 2.3 g
• B. 5.02 g
• C. 6.9 g
• D. 7.1 g

Answer 1

The correct option is B 5.02 g

Since 58.5 g of sodium chloride contains 23 g of sodium,

$⟹$11.7 g of sodium chloride contains $\frac{23}{53.5}\times 11.7$ = 4.6 g of sodium.